1、June 2012 Translation by DIN-Sprachendienst.English price group 8No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 25
2、.220.10!$|eq“1896678www.din.deDDIN EN ISO 8503-2Preparation of steel substrates before application of paints and relatedproducts Surface roughness characteristics of blast-cleaned steel substrates Part 2: Method for the grading of surface profile of abrasiveblast-cleaned steel Comparator procedure (
3、ISO 8503-2:2012)English translation of DIN EN ISO 8503-2:2012-06Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen Rauheitskenngren von gestrahlten Stahloberflchen Teil 2: Verfahren zur Prfung der Rauheit von gestrahltem Stahl Vergleichsmusterverfahren (ISO 8503-2:2012)Engli
4、sche bersetzung von DIN EN ISO 8503-2:2012-06Prparation des subjectiles dacier avant application de peintures et de produitsassimils Caractristiques de rugosit des subjectiles dacier dcaps Partie 2: Mthode de classification dun profil de surface en acier dcape par projectiondabrasif Utilisation des
5、comparateurs viso-tactiles (ISO 8503-2:2012)Traduction anglaise de DIN EN ISO 8503-2:2012-06SupersedesDIN EN ISO 8503-2:1995-08www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 12 pages06.12 DIN EN ISO 8503-2:2012-06 2 A comma is used as
6、the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” (Secretariat: NEN, Netherlands) in collaboration with CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation w
7、as the Normenausschuss Beschichtungsstoffe und Beschichtungen (Coatings and Coating Materials Standards Committee), Working Committee NA 002-00-10 AA Korrosionsschutz von Stahlbauten, Subcommittee NA 002-00-10-04 UA Oberflchenvorbereitung und -prfung. The DIN Standards corresponding to the Internati
8、onal Standards referred to in this document are as follows: ISO 8501-1 DIN EN ISO 8501-1 ISO 8503-1:2012 DIN EN ISO 8503-1:2012-06 ISO 8503-3 DIN EN ISO 8503-3 ISO 8503-4 DIN EN ISO 8503-4 ISO 8504-2 DIN EN ISO 8504-2 DIN EN ISO 8503 consists of the following parts, under the general title Preparati
9、on of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates: Part 1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces Part 2: Method for the gradin
10、g of surface profile of abrasive blast-cleaned steel Comparator procedure Part 3: Method for the calibration of ISO surface profile comparators and for the determination of surface profile Focusing microscope procedure Part 4: Method for the calibration of ISO surface profile comparators and for the
11、 determination of surface profile Stylus instrument procedure Part 5: Replica tape method for the determination of the surface profile Amendments This standard differs from DIN EN ISO 8503-2:1995-08 as follows: a) the text of the standard has been revised in form and substance. Previous editions DIN
12、 EN ISO 8503-2: 1995-08 DIN EN ISO 8503-2:2012-06 3 National Annex NA (informative) Bibliography DIN EN ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation grades of uncoated steel
13、substrates and of steel substrates after overall removal of previous coatings DIN EN ISO 8503-1:2012, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 1: Specifications and definitions for ISO s
14、urface profile comparators for the assessment of abrasive blast-cleaned surfaces DIN EN ISO 8503-3, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 3: Method for the calibration of ISO surface
15、profile comparators and for the determination of surface profile Focusing microscope procedure DIN EN ISO 8503-4, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 4: Method for the calibration o
16、f ISO surface profile comparators and for the determination of surface profile Stylus instrument procedure DIN EN ISO 8504-2, Preparation of steel substrates before application of paints and related products Surface preparation methods Part 2: Abrasive blast-cleaning DIN EN ISO 8503-2:2012-06 4 This
17、 page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8503-2 February 2012 ICS 25.220.10 Supersedes EN ISO 8503-2:1995English Version Preparation of steel substrates before application of paints and related products - Surface roughness characteristics of blast-cleaned
18、 steel substrates - Part 2: Method for the grading of surface profile of abrasive blast-cleaned steel - Comparator procedure (ISO 8503-2:2012) Prparation des subjectiles dacier avant application de peintures et de produits assimils - Caractristiques de rugosit des subjectiles dacier dcaps - Partie 2
19、: Mthodede classification dun profil de surface en acier dcape par projection dabrasif - Utilisation des comparateurs viso-tactiles (ISO 8503-2:2012) Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen - Rauheitskenngren von gestrahlten Stahloberflchen - Teil 2: Verfahren zur
20、 Prfung der Rauheit von gestrahltem Stahl; Vergleichsmusterverfahren (ISO 8503-2:2012) This European Standard was approved by CEN on 14 February 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
21、 of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Germ
22、an). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia
23、, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STAN
24、DARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8503-2:2012: EEN ISO 8503-2:2012 (E) 2 Contents
25、 Page Foreword3 Introduction .4 1 Scope 5 2 Normative reference 5 3 Terms and definitions .5 4 Principle 6 5 Apparatus .6 6 Maintenance and re-calibration of comparators 6 7 Procedure .6 8 Test report 7 DIN EN ISO 8503-2:2012-06 EN ISO 8503-2:2012 (E) 3 Foreword This document (EN ISO 8503-2:2012) ha
26、s been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical
27、text or by endorsement, at the latest by August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held respons
28、ible for identifying any or all such patent rights. This document supersedes EN ISO 8503-2:1995. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cypr
29、us, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text o
30、f ISO 8503-2:2012 has been approved by CEN as a EN ISO 8503-2:2012 without any modification. DIN EN ISO 8503-2:2012-06 IntroductionThe performance of protective coatings of paint and related products applied to steel is significantly affected by the state of the steel surface immediately prior to pa
31、inting. The principal factors that are known to influence this performance are:a) the presence of rust and mill scale;b) the presence of surface contaminants, including salts, dust, oils and greases;c) the surface profile.International Standards ISO 8501 (all parts), ISO 8502 (all parts) and ISO 850
32、3 (all parts) have been prepared to provide methods of assessing these factors, while ISO 8504 (all parts) provides guidance on the preparation methods that are available for cleaning steel substrates, indicating the capabilities of each in attaining specified levels of cleanliness.These Internation
33、al Standards do not contain provisions for the protective coating systems to be applied to the steel surface or for the surface quality provisions for specific situations, even though surface quality can have a direct influence on the choice of protective coating to be applied and on its performance
34、. Such provisions are found in other documents such as national standards and codes of practice. It is necessary for the users of these International Standards to ensure that the qualities specified are: compatible and appropriate both for the environmental conditions to which the steel is exposed a
35、nd for the protective coating system to be used; within the capability of the cleaning procedure specified.The four International Standards referred to above deal with the following aspects of preparation of steel substrates: ISO 8501: Visual assessment of surface cleanliness; ISO 8502: Tests for th
36、e assessment of surface cleanliness; ISO 8503: Surface roughness characteristics of blast-cleaned steel substrates; ISO 8504: Surface preparation methods.Irrespective of the procedures and the type of abrasive used for the preparation of steel substrates, the surface after blast-cleaning consists of
37、 random irregularities with peaks and valleys that are not easily characterized. Consequently, it was concluded that, because of this random nature, no method is capable of giving a precise value for the profile. Thus, it is intended that the profile be identified as either dimpled (where shot abras
38、ives are used) or angular (where grit abrasives are used) and that it be graded as “fine”, “medium” or “coarse”, each grade being defined by the limits specified in ISO 8503-1. These surface characteristics are considered to give sufficient distinguishing features for most painting requirements.Part
39、icular attention, however, is drawn to the fact that the grades “fine”, “medium” and “coarse” represent different ranges in terms of roughness parameters, dependent upon whether these grades are applied to shot abrasive or grit abrasive blast-cleaned surfaces. In consequence, the effect produced on
40、a given coating by a given grade “fine”, “medium” or “coarse” is determined not only by the specific surface character but also by the specific roughness value Ry5or hybelonging to that grade. Where surface profile is particularly important, both the grade of the surface profile (“fine”, “medium” or
41、 “coarse”) and the type of abrasive which is to be used are to be specified.EN ISO 8503-2:2012 (E) DIN EN ISO 8503-2:2012-06 4 1 ScopeThis part of ISO 8503 describes a visual and tactile method for assessing the grade of the profile which is produced by one of the abrasive blast-cleaning procedures
42、described in ISO 8504-2.The method uses ISO surface profile comparators for assessing, on site, the roughness of surfaces before the application of paint or other protective treatments.NOTE Where appropriate, ISO surface profile comparators can be used for assessing the roughness profile of other ab
43、rasive blast-cleaned substrates and, in addition, their use is not restricted solely to surfaces that are to be painted.The method is applicable to steel surfaces which have been blast-cleaned by use of either shot abrasives or grit abrasives, but is only applicable to grades Sa 2 and Sa 3 of ISO 85
44、01-1 where the entire surface under test shows an overall blast-cleaned appearance.lt is applicable to surfaces which have been cleaned with either metallic or non-metallic abrasives.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For
45、dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Ru
46、st grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatingsISO 8503-1:2012, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part
47、1: Specifications and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfacesISO 8503-3, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 3: Method
48、for the calibration of ISO surface profile comparators and for the determination of surface profile Focusing microscope procedureISO 8503-4, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 4: Method for the calibration of ISO surface profile comparators and for the determination of surface profile Stylus instrument procedureISO 8504-2,
